Estadio: Court 2 Versmold Round: 26 Ground: Clay
| ITF W60 Versmold | 2021/07/28 11:00 | Federica Di Sarra v Noma Noha Akugue | 6-1,6-1 |
| WTA Gdynia | 2021/07/19 11:05 | Federica Di Sarra v Irina Maria Bara | 3-6,6-1,5-7 |
| WTA Gdynia | 2021/07/18 09:00 | Federica Di Sarra v Tereza Mrdeza | 6-4,7-5 |
| WTA Gdynia | 2021/07/17 09:00 | Gabriela Talaba v Federica Di Sarra | 4-6,3-6 |
| ITF W25 Torino | 2021/07/06 13:35 | Diane Parry v Federica Di Sarra | 7-6,6-3 |
| ITF W25 Perigueux | 2021/06/24 12:20 | Federica Di Sarra v Elsa Jacquemot | 2-6,7-5,3-6 |
| ITF W25 Perigueux | 2021/06/23 08:00 | Federica Di Sarra v Amanda Carreras | 6-3,6-4 |
| ITF W25 Jönköping | 2021/06/16 10:15 | Fanny Ostlund v Federica Di Sarra | 6-4,4-6,6-3 |
| ITF W60 Versmold | 2021/07/27 13:00 | Anna Klasen v Daniela Seguel | 6-3,6-7,6-4 |
| ITF W60 Versmold | 2021/07/26 15:00 | Anna Klasen v Yana Morderger | 6-7,6-2,10-6 |
| ITF W60 Olomouc | 2021/07/18 08:00 | Amanda Carreras v Anna Klasen | 6-2,6-1 |
| ITF W100 Contrexeville | 2021/07/05 11:00 | Anna Klasen v Margaux Rouvroy | 4-6,3-6 |
| UTR Pro Tennis Series - Copenhagen - Femenino | 2021/05/29 12:10 | Sofia Nami Samavati v Anna Klasen | 6-4,6-0 |
| UTR Pro Tennis Series - Copenhagen - Femenino | 2021/05/28 11:30 | Lou Adler v Anna Klasen | 4-6,2-6 |
| UTR Pro Tennis Series - Copenhagen - Femenino | 2021/05/27 14:10 | Martha-Elisa Stemann v Anna Klasen | 1-6,2-5 |
| UTR Pro Tennis Series - Copenhagen - Femenino | 2021/05/26 08:00 | Karoline Laursen v Anna Klasen | 2-6,1-6 |